TDA7546 Datasheet, PDF (44/68 Pages) STMicroelectronics – Multichip module for TMC tuner applications

Software specifications
TDA7546
Table 21. Addr 10 quality detection multipath
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0 Multipath control “ON”
1 Multipath control “OFF”
0
MP bandpass frequency 19KHz
1
0
MP bandpass frequency 31KHz
MP gain 12dB
1
MP gain 23dB
00
MP threshold 0.50V
01
10
MP threshold 0.75V
MP threshold 1.00V
11
MP threshold 1.25V
00
Application mode 1
01
Application mode 2
0
Multipath eliminates ac
1
Multipath eliminates ac and ac+
Table 22. Addr 11 quality deviation detection
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0 0 0 charge current 34μA, discharge current 6μA
0 0 1 charge current 32μA, discharge current 8μA
0 1 0 charge current 30mA, discharge current 10μA
0 1 1 charge current 28μA, discharge current 12μA
- - --
1 1 1 charge current 20μA, discharge current 20μA
00
DEV threshold for ISS narrow/wide 30KHz
01
DEV threshold for ISS narrow/wide 45KHz
10
DEV threshold for ISS narrow/wide 60KHz
11
00
DEV threshold for ISS narrow/wide 75KHz
DEV threshold for ISS filter “OFF” ratio 1.5
01
DEV threshold for ISS filter “OFF” ratio 1.4
10
DEV threshold for ISS filter “OFF” ratio 1.3
11
DEV threshold for ISS filter “OFF” ratio 1
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